96 lines
3.6 KiB
C++
96 lines
3.6 KiB
C++
/*
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* Copyright 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HARDWARE_GRAPHICS_MAPPER_V2_0_GRALLOC_MAPPER_H
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#define ANDROID_HARDWARE_GRAPHICS_MAPPER_V2_0_GRALLOC_MAPPER_H
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#include <android/hardware/graphics/mapper/2.0/IMapper.h>
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#include <cutils/native_handle.h>
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#include <mutex>
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#include <unordered_set>
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namespace android {
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namespace hardware {
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namespace graphics {
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namespace mapper {
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namespace V2_0 {
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namespace implementation {
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class GrallocMapper : public IMapper {
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public:
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// IMapper interface
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Return<void> createDescriptor(const BufferDescriptorInfo& descriptorInfo,
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createDescriptor_cb hidl_cb) override;
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Return<void> importBuffer(const hidl_handle& rawHandle,
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importBuffer_cb hidl_cb) override;
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Return<Error> freeBuffer(void* buffer) override;
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Return<void> lock(void* buffer, uint64_t cpuUsage,
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const IMapper::Rect& accessRegion,
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const hidl_handle& acquireFence,
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lock_cb hidl_cb) override;
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Return<void> lockYCbCr(void* buffer, uint64_t cpuUsage,
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const IMapper::Rect& accessRegion,
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const hidl_handle& acquireFence,
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lockYCbCr_cb hidl_cb) override;
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Return<void> unlock(void* buffer, unlock_cb hidl_cb) override;
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protected:
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static void waitFenceFd(int fenceFd, const char* logname);
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struct {
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bool highUsageBits;
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bool layeredBuffers;
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bool unregisterImplyDelete;
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} mCapabilities = {};
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private:
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virtual bool validateDescriptorInfo(
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const BufferDescriptorInfo& descriptorInfo) const;
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// Register a buffer. The handle is already cloned by the caller.
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virtual Error registerBuffer(buffer_handle_t bufferHandle) = 0;
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// Unregister a buffer. The handle is closed and deleted by the
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// callee if and only if mCapabilities.unregisterImplyDelete is set.
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virtual void unregisterBuffer(buffer_handle_t bufferHandle) = 0;
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// Lock a buffer. The fence is owned by the caller.
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virtual Error lockBuffer(buffer_handle_t bufferHandle, uint64_t cpuUsage,
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const IMapper::Rect& accessRegion, int fenceFd,
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void** outData) = 0;
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virtual Error lockBuffer(buffer_handle_t bufferHandle, uint64_t cpuUsage,
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const IMapper::Rect& accessRegion, int fenceFd,
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YCbCrLayout* outLayout) = 0;
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// Unlock a buffer. The returned fence is owned by the caller.
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virtual Error unlockBuffer(buffer_handle_t bufferHandle,
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int* outFenceFd) = 0;
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static bool getFenceFd(const hidl_handle& fenceHandle, int* outFenceFd);
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static hidl_handle getFenceHandle(int fenceFd, char* handleStorage);
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};
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extern "C" IMapper* HIDL_FETCH_IMapper(const char* name);
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} // namespace implementation
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} // namespace V2_0
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} // namespace mapper
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} // namespace graphics
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} // namespace hardware
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} // namespace android
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#endif // ANDROID_HARDWARE_GRAPHICS_MAPPER_V2_0_GRALLOC_MAPPER_H
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